JP2562684Y2 - Purge combustor - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a purging combustor for burning and removing gaseous fuel in piping.

[0002]

2. Description of the Related Art For example, when changing the calorific value of city gas, it is necessary to remove old gas from piping. However, this type of gas has a lower specific gravity than air and can be released to the atmosphere.
There is a safety problem. Therefore, it is conventionally guided to a purging combustor to burn and remove.

As shown in FIG. 2, a conventional purging combustor includes a burner 10 and a windshield 12 that covers the periphery of a nozzle 11 of the burner 10 to the upper side.
Is formed by stretching a punching metal 14 on a frame 13 so as to prevent the flame from the nozzle portion 11 from overflowing to the outside.

[0004]

The conventional purging combustor has a large integral structure in which a punching metal 14 is stretched on a frame 13. Immediately after the completion of the purge combustion, the punching metal 14 is overheated and becomes hot. The vessel was large and heavy and could not be transported alone. For this reason, they are mounted on a truck bed and transported. Therefore, it has been difficult to use it anywhere.

An object of the present invention is to provide a purging combustor which can be easily transported by one person immediately after completion of purging combustion.

[0006]

According to the present invention, in a purging combustor for burning and removing gaseous fuel in a pipe, a burner that burns with a short flame only by the pressure of gaseous fuel is provided by a foldable windshield. The windshield is formed of a foamed metal plate.

It is preferable to use, for example, "Celmet" (trade name, manufactured by Sumitomo Electric Industries, Ltd.) for the foamed metal plate.
This “Celmet” has a porosity of 98% at the maximum, a high surface area, a small heat capacity, a small airflow resistance, and a very small pressure loss.

[0008]

In the purging combustor constructed as described above, the burner burns in a short flame with only the pressure of the gaseous fuel, and thus purges and burns the gaseous fuel in a short time.

Further, the foamed metal plate prevents the flame from overflowing to the outside, and at the time of combustion, sucks combustion air from the outside, so that overheating is prevented by the cooling effect. Also,
Since it has a small heat capacity, it is rapidly cooled after the end of combustion and is lightweight, so that it can be transported immediately by one person.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, a purging combustor according to the present invention includes a burner 1 (preferably a product name "SJ burner") 1 which burns with a short flame only by the pressure of gaseous fuel, and a periphery of a nozzle 2 of the burner 1. Is constructed from a windshield indicated by reference numeral 3 as a whole, which covers up to the upper side. The windshield 3 is composed of a pair of units 4 connected to each other by two pairs of upper and lower connectors.

The unit 4 is provided with a frame 5 and a pair of upper and lower beams 6 pivotally connected by hinges (not shown) on both sides of the frame 5. , And foam metal plates 8 and 9 are stretched, respectively. For the foamed metal plates 8 and 9, for example, the product name "Celmet" manufactured by Sumitomo Electric Industries, Ltd. is preferably used. This “Celmet” has a maximum porosity of 9
It has a high surface area at 8%, a small heat capacity, low airflow resistance and very low pressure loss.

Next, the operation will be described.

The burner 1 burns the gaseous fuel from the nozzle portion 2 with a short flame in a short time, and the windshield 3 reliably prevents the flame from overflowing to the outside.

Further, since the foamed metal plates 8 and 9 draw the combustion air from the outside to the inside during combustion, overheating is prevented by the cooling effect. Further, the heat capacity is small, and the fuel is cooled rapidly after the completion of the purge combustion. Therefore, immediately after the purge combustion, the connection of the connecting members 7, 7 can be released, and the metal foam plates 9, 9 can be folded inward and easily transported alone.

[0016]

According to the present invention, since the present invention is configured as described above, it is cooled rapidly after the completion of the purge combustion and can be easily transported by one person. Therefore, purge combustion can be performed at any location.

Further, it is possible to prevent the flame from overflowing to the outside by the windshield, thereby achieving safety.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a conventional purging combustor.

[Explanation of symbols]

 1, 10 ... Burner 2, 11 ... Nozzle part 3, 12 ... Windshield 4 ... Unit 5, 13 ... Frame 6 ... Beam 7 ... Connecting tool 8, 9, ...・ Foam metal plate 14 ・ ・ ・ Punching metal

Claims (1)

(57) [Scope of request for utility model registration] In a purging combustor for burning and removing gaseous fuel in a pipe, a burner that burns with a short flame only by the pressure of gaseous fuel is surrounded by a foldable windshield, and the windshield is formed of a foamed metal plate. A purging combustor characterized in that: